# _*_ coding: utf-8 _*_

import numpy as np

import matplotlib.pyplot as plt

mu, sigma = 100, 15

x = mu + sigma * np.random.randn(10000)

n, bins, patches = plt.hist(x, 50, normed= 1, facecolor=

                            'g' , alpha = 0.75)

plt.xlabel('Smarts')

plt.ylabel('Probability')


plt.title('Histogram of IQ')


plt.text(60, 0.25, r'$\mu=100,\ \sigma=15$')


plt.axis([40, 160, 0, 0.03])


plt.grid(True)

plt.show()
                            
                            
